diff -r 000000000000 -r 094583676ce7 inc/CPEngContactListNotifier2.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/CPEngContactListNotifier2.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,224 @@
+/*
+* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Notifier API to listen presence contact list changes.
+*
+*/
+
+#ifndef __CPENGCONTACTLISTNOTIFIER2_H
+#define __CPENGCONTACTLISTNOTIFIER2_H
+
+
+//  INCLUDES
+#include <E32Base.h>
+#include <BamDescA.h>
+
+
+//FORWARD DECLARATIONS
+class MPEngContactListObserver2;
+class MPEngContactList2;
+class CPEngContactListNotifier2Imp;
+class CPEngNWSessionSlotID2;
+
+
+
+// CLASS DECLARATION
+
+/**
+ * Notifier API for presence contact list changes.
+ *
+ * With this API clients can
+ * 1. Receive notifications from changes in presence
+ *    contact lists contents (users added or removed).
+ *
+ * 2. Receive notifications from changes in presence
+ *    contact lists settings.
+ *
+ * @lib PEngManager2.lib
+ * @since 3.0
+ */
+class CPEngContactListNotifier2 : public CBase
+    {
+        //-----------------------------------------------------------------------
+    public: /* Construction */
+
+        /**
+         * Instantiates CPEngContactListNotifier2 object.
+         *
+         * Instantiates CPEngContactListNotifier2 object and connects it to
+         * identified Presence Engine side NWSessionSlot. NWSessionSlot
+         * must be a valid, existing slot.
+         *
+         * Errors:
+         *  - Requested NWSessionSlot not found: KErrNotFound
+         *  - Given NWSessionSlotID malformed: KErrArgument
+         *
+         * @param aNWSessionSlotID The session slot ID to identify the
+         * session slot.
+         * @param aPriority The priority for CPEngPresenceNotifier2
+         * client side active objects. These active objects are used when
+         * asynchronously delivering events to observers.
+         *
+         * @return New CPEngPresenceNotifier2 instance.
+         */
+        IMPORT_C static CPEngContactListNotifier2* NewL(
+            const CPEngNWSessionSlotID2& aNWSessionSlotID,
+            TInt aPriority = CActive::EPriorityStandard );
+
+        IMPORT_C static CPEngContactListNotifier2* NewLC(
+            const CPEngNWSessionSlotID2& aNWSessionSlotID,
+            TInt aPriority = CActive::EPriorityStandard );
+
+
+        /**
+         * Destructor.
+         * Virtual by CBase.
+         */
+        ~CPEngContactListNotifier2();
+
+
+
+    protected:
+
+        CPEngContactListNotifier2();
+
+
+
+
+        //-----------------------------------------------------------------------
+    public: /* Basic contact list notifier */
+
+        /**
+         * Check if the notifier is active.
+         *
+         * @since 3.0
+         * @return ETrue if the notifier is active. Else EFalse.
+         */
+        IMPORT_C TBool IsActive() const;
+
+
+
+        /**
+         * Starts observing contact list changes.
+         *
+         * @since 3.0
+         * @param aContactListName Contact list(s) which changes to track.
+         * @return Result from observer start.
+         * - KErrNone if notifier start succeeds.
+         * - KErrInUse if notifier already started.
+         * - KErrAlreadyExist if duplicate contact lists given.
+         * - Else one of system wide error codes.
+         */
+        IMPORT_C TInt Start( const TDesC& aContactListName );
+        IMPORT_C TInt Start( const MDesCArray& aContactListNames );
+
+
+        /**
+         * Stops observing contact list changes.
+         *
+         * @since 3.0
+         */
+        IMPORT_C void Stop();
+
+
+
+
+
+        //-----------------------------------------------------------------------
+    public: /* Advanced notifier features */
+
+
+        /**
+         * Adds contact list to the list of tracked contact lists.
+         *
+         * @since 3.0
+         * @param aContactListName Contact list which changes to track.
+         *
+         * @return Result from adding Contact list.
+         * - KErrNone if contact list add succeeds.
+         * - KErrNotReady if notifier not started.
+         * - KErrAlreadyExist if duplicate contact list.
+         * - Else one of system wide error codes.
+         */
+        IMPORT_C TInt Add( const TDesC& aContactListName );
+
+
+        /**
+         * Removes contact list from the list of tracked contact lists.
+         *
+         * If the last contact list is removed, stops the notifier.
+         *
+         * @since 3.0
+         * @param aContactListName Contact list which tracking to stop.
+         *
+         * @return Result from removing Presence ID.
+         * - KErrNone if contact list remove succeeds.
+         * - KErrNotReady if notifier not started.
+         * - KErrNotFound if contact list not tracked.
+         * - Else one of system wide error codes.
+         */
+        IMPORT_C TInt Remove( const TDesC& aContactListName );
+
+
+
+
+
+        //-----------------------------------------------------------------------
+    public: /* Contact list observers */
+
+
+        /**
+         * Registers observer to be notified from contact list changes.
+         *
+         * Observers are notified in their registeration order.
+         * (First registerd notified first.)
+         *
+         * @param aObserver The observer to be notified.
+         * @return KErrNone is observer added succesfully.
+         *         Else one of the system wide error codes.
+         */
+        IMPORT_C TInt AddObserver(
+            MPEngContactListObserver2& aObserver );
+
+
+
+        /**
+         * Unregisters contact list observer.
+         *
+         * @param aObserver The observer to remove.
+         * @return KErrNone is observer removed succesfully.
+         *         KErrNotFound if the observer wasn't registered.
+         */
+        IMPORT_C TInt RemoveObserver(
+            MPEngContactListObserver2& aObserver );
+
+
+
+
+        //-----------------------------------------------------------------------
+    private: /* Data */
+
+
+        //OWN: Implementation
+        CPEngContactListNotifier2Imp*     iImp;
+
+    };
+
+
+
+#endif  //__CPENGCONTACTLISTNOTIFIER2_H
+
+// End of File
+
+
+